The co-op ad network is broken

It is still today serving up ads I've deleted over 9 months ago.

If you look at my account (username = buymetal) you'll see it has 0 weight, it has had 0 weight for over 6 months.

One example is an ad in there for mobile phone it is still live in the network (nearly a million impressions). I created a brand new install of the code and waited for the ad_network_ads.txt to populate.

23/100 ads are for my old sites that I have long removed/disabled the ads for, so my ads are using up 23% of the network, yet I have no weight on them!

Could it be that there is something broke in the code for the co-op that serves the ads?

Could it be that the load balancing servers aren't mirroring correctly and something is running from a 9 month old backup?

I have created a new ad recently and assigned 250,000 weight to it. I have yet to find it in an ad file? I've cleared the ad file several times and waited for it to repopulate.